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Old 02-04-2013, 12:40 PM   #1 (permalink)
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Clutch, differential install

I need advice on jack points. I know
where they all are and have used them all
at some on many occasions but only with a
floor jack.
My mechanic has a 4-point lift and says the
rear arm of the lift obstructs access to the
transmission when raised at jack point "D".
This is the rear most jack point on the subframe.

My question is whether jack points "C" and "B"
may be used to raise the car on a 4-point lift.
"C" is on the shear panel. If not, what are my
options using a 4-point lift safely, yet not obstructing
the engine/trans from beneath with the arm of the 4-point
lift?

This os from Lotus Service Notes:
Care must be taken when using a lifting jack or hoist to position the device only in one of the the areas shown in the illustration, with a suitable rubber or timber pad protecting the chassis from surface damage. If a 4-point lift is to be used, the engine bay undertray/diffuser panel (if fitted) must first be removed. When using a 4-point lift, it is strongly recommended that for optimum stability and safety, positions B and D are used.


A: Identified by a blue sticker. Beneath crossmember ahead of fuel tank bay. To be used one side at a time for wheel changing - lifts both wheels on one side. Do not use with a four point garage lift.
B: Beneath the front end of the right or left hand main chassis rail, behind the front wheelarch. Garage use with 4-point lift in conjunction with (C).
C: The engine undertray/diffuser panel must first be removed. Beneath the outboard end of the chassis crossmember ahead of the rear wheelarches. Take care to position the jack between the fixing screws for the fuel tank bay perforated undershield. Garage use with 4-point lift in conjuction with (B).
D: The engine undertray/diffuser panel must first be removed. Beneath the rear subframe, close to the lower wishbone rearmost mountings.

-Robert
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Last edited by sleepe; 02-04-2013 at 12:54 PM.
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Old 02-05-2013, 10:11 AM   #2 (permalink)
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come on peoples////I got a mechanic waiting for an answer
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Old 02-05-2013, 02:14 PM   #3 (permalink)
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Quote:
Originally Posted by sleepe View Post
come on peoples////I got a mechanic waiting for an answer
pull both trays, then jack up at the rear cross member, and place jack stands there, works for me.

If he insists on using a 4 point (and locating the rear arms on the lower control arms front cross member support), he'll have to place at lease 100lbs of balast on the front hood...

Best help I can do for ya.
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